Welcome Guest. | Log In| Register | Membership Benefits
  • Email this page E-mail this page
  • |  Print Print this page
  • |   Bookmark and Share
  • |  icon
  • | 

Covert Labs Warns Of Oracle 8i Vulnerabilities


Covert Labs warns Oracle8i users of two vulnerabilities that could compromise systems and allow a network intrusion or denial-of-service attack.

By George V. Hulme
InformationWeek
June 28, 2001 12:00 AM

PGP Security's Covert Labs is warning Oracle 8i users of two vulnerabilities that, if exploited, could seriously compromise systems and data and allow a network intrusion and a denial-of-service attack.

"This is not trivial; this would rank up there as the sort of thing you don't want to let sit around," warns Jim Magdych, security research manager for PGP Security, a unit of Network Associates Inc. Covert Labs labeled a vulnerability it found in the Oracle 8i Transparent Network Substrate Listener, which establishes remote communications with Oracle database services. According to Covert, if the correct buffer overflow condition is created by a hacker, arbitrary code can be executed that would hand over full control of the database services to the attacker. In some instances, attackers can gain full control of the operating system. Covert warns that since the buffer overflow occurs before any security authorization, the TNS Listener is vulnerable despite password protection.

This vulnerability applies to Oracle 8i Standard and Enterprise Editions version 8.1.5, 8.1.6, 8.1.7 and previous versions for Windows, Linux, Solaris, AIX, HP-UX, and Tru64 Unix, says Covert. Oracle has issued a patch, with bug number 1489683, which can be found at metalink.oracle.com.

A second, medium-risk vulnerability in the Oracle implementation of the TNS over net* (SQLNet) protocol permits a denial-of-service attack, launched by a remote attacker, against any Oracle server relying on the protocol, including the TNS Listener, Oracle Name Service, and Oracle ConnectionsManager. This vulnerability also applies to Oracle 8i Standard and Enterprise Editions version 8.1.5, 8.1.6, 8.1.7 and all previous versions for Windows, Linux, Solaris, AIX, HP-UX, and Tru64 Unix. Oracle has also posted a patch for this vulnerability, with bug number 1656431, at metalink.oracle.com.

Magdych predicts companies will take this vulnerability seriously. "A database vulnerability is a little different than a Web server vulnerability that allows a defacement. Companies store a lot of sensitive information on these databases; allowing someone to read or modify that information is not something to be taken lightly."

More information on both vulnerabilities can be found at www.pgp.com/research/covert/advisories.asp.


Subscribe to RSS


Advertisement

CAREER CENTER
Ready to take that job and shove it?



TechCareers

SEARCH
Function:

Keyword(s):

State:
SPONSOR
RECENT JOB POSTINGS
CAREER NEWS
10 Search Engines You Don't Know About
Go beyond Google and get vertical. These specialized search sites will help you find the business information you need -- fast.

Yahoo Profits Fall 23%, Cuts 1,000 Jobs
Ari Balogh was named to the post of chief technology officer as the companys for a "realignment" of employees.

More articles from our career center





Subscription Info
Apply for a free 52-week subscription to InformationWeek (a $199 value)

Last Name:

First Name:

Title:

Company Name:

City:

Business Address:

Zip:

State:

Email Address:

NOTE: Offer valid for U.S., U.S. possessions, & Canada only